Graphene heat dissipation adhesive tape with ultrahigh heat dissipation performance, preparation device and method

Abstract

The invention discloses a graphene heat dissipation adhesive tape with ultrahigh heat dissipation performance and a preparation device and method, and particularly relates to the technical field of graphene heat dissipation adhesive tape. The graphene heat dissipation adhesive tape comprises an adhesive tape body, and the adhesive tape body comprises a base material, an organic silica gel layer and a first release film which are sequentially bonded from top to bottom; a plurality of rectangular grooves are formed in the top of the base material through hot pressing, the rectangular grooves are distributed in the top of the base material in a linear array mode, the top of the base material is sprayed to form a heat dissipation layer, the heat dissipation layer is a heat dissipation film formed by mixing and solidifying a graphene heat dissipation coating and a resin adhesive, and a second release film is fixedly bonded to the top of the heat dissipation film. According to the invention, the surface of the adhesive tape body is uneven through the plurality of rectangular grooves, and air circulation holes can be formed between the rectangular grooves and a heat dissipation film formed by solidification of the graphene heat dissipation coating and the resin adhesive, so that the heat dissipation effect of the adhesive tape body can be improved, and the adhesive tape body has ultrahigh heat dissipation performance.

Description

Technical Field

[0001] The invention relates to the technical field of graphene heat dissipation tapes, and more specifically to a graphene heat dissipation tape with ultra-high heat dissipation, and a preparation device and method thereof. Background Art

[0002] Adhesive tape is a kind of sticky material in strip shape, which is usually composed of substrate, adhesive and isolation layer (also called release paper or release film). Existing adhesive tape can be divided into heat dissipation tape, double-sided tape, insulation tape, special tape, pressure-sensitive tape and die-cutting tape according to its function. Different functions are suitable for different industry needs.

[0003] Among them, heat dissipation tape is a tape used for heat dissipation, which can effectively conduct away the heat generated by the heat-generating component and reduce the temperature of the component. When the heat-generating component generates heat, the heat is quickly conducted to other parts of the tape through the high thermal conductivity material (such as metal foil, graphene, etc.) in the tape, and then transferred to the heat dissipation device or the surrounding environment in contact with it. For example, the prior art publication number is CN208200824U, a graphene heat dissipation tape with a buffering effect.

[0004] However, the above-mentioned prior art still has the following problems when used: traditional graphene heat dissipation tapes are usually directly sprayed with graphene coating on the tape for heat dissipation. Although the graphene coating can conduct heat over a large range after solidification, the heat passes through the tape, the graphene coating, and finally dissipates from the surface at a slow speed, and the heat cannot be dissipated quickly. Based on this, the present invention provides a graphene heat dissipation tape with ultra-high heat dissipation, a preparation device and a method. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a graphene heat dissipation tape with ultra-high heat dissipation, a preparation device and a method to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a graphene heat dissipation tape with ultra-high heat dissipation, comprising a tape body, wherein the tape body comprises a substrate, a silicone layer and a release film 1 bonded in sequence from top to bottom, the top of the substrate is hot-pressed to form a plurality of rectangular grooves, the plurality of rectangular grooves are distributed in a linear array on the top of the substrate, the top of the substrate is sprayed to form a heat dissipation layer, the heat dissipation layer is a heat dissipation film formed by mixing and solidifying a graphene heat dissipation coating and a resin adhesive, and a release film 2 is fixedly bonded to the top of the heat dissipation film.

[0007] The present invention also includes a device for preparing the above-mentioned graphene heat dissipation tape with ultra-high heat dissipation, the preparation device includes a processing table, a detachable protective shell is fixedly provided on the top of the processing table, a guide rail for guiding the movement of the tape body is provided inside the protective shell, and a hot pressing mechanism and a coating mechanism are provided on the top of the processing table;

[0008] The hot pressing mechanism comprises an electric heating plate, which is installed inside the protective shell through a driving mechanism, and a plurality of rectangular strips are processed on the bottom of the electric heating plate, and rectangular grooves are hot pressed on the top of the tape body;

[0009] The coating mechanism includes a liquid storage tank fixed inside the protective shell, a high-pressure pump is fixedly provided at the bottom of the liquid storage tank, a plurality of spray guns arranged above the tape body are connected to the high-pressure pump, and a stirring paddle is provided inside the liquid storage tank.

[0010] In a preferred embodiment, a detachable sealing cover is fixedly provided on the top of the liquid storage tank, and the top of the stirring paddle passes through the sealing cover and extends between the sealing cover and the protective shell.

[0011] In a preferred embodiment, a feeding pipe is fixedly passed through the top of the sealing cover, the feeding pipe is connected to the inside of the liquid storage tank, and the top of the feeding pipe is threadedly connected to a threaded cover located in the protective shell, and a plurality of electric heating rods are fixedly provided at the bottom of the sealing cover, and the plurality of electric heating rods are distributed in a circular array with the stirring paddle as the center.

[0012] In a preferred embodiment, the driving mechanism includes a screw rod, which is fixed on a side of the protective shell away from the liquid storage tank through a bracket, and a nut block is sleeved on the screw rod, and the nut block is threadedly connected to the screw rod. A slide groove is processed at the rear end of the protective shell, and the rear end of the nut block is slidably connected to the slide groove.

[0013] In a preferred embodiment, a motor for driving the screw to rotate is fixedly provided on the top of the bracket, and the screw is connected to the stirring paddle via a belt drive assembly.

[0014] In a preferred embodiment, a pressing assembly and a winding assembly are installed in the protective shell, and the pressing assembly and the winding assembly are both arranged on the side of the liquid storage tank away from the screw rod. The pressing assembly can be used to press the release film 2 and the tape body together, and the winding assembly can be used to wind up the tape body covered with the release film 2.

[0015] The present invention also includes a method for preparing a graphene heat dissipation tape with ultra-high heat dissipation using the above-mentioned preparation device, and the specific steps are as follows:

[0016] Step 1: Pass one end of the tape body through the guide rail and connect it to the reel assembly, and use the reel assembly to pull the tape body to move;

[0017] Step 2: When the tape body moves to the bottom of the electric heating plate, the winding assembly stops rotating, and the motor drives the screw rod to rotate, so that the nut block on the screw rod moves downward to drive the electric heating plate to press out multiple rectangular grooves on the top of the tape body, and then the electric heating plate moves upward, and the winding assembly rotates again to pull the tape body to move;

[0018] Step 3: When the tape body is moved to the bottom of the spray gun, multiple spray guns spray graphene heat dissipation coating and resin adhesive onto the surface of the tape body;

[0019] Step 4: After the tape body continues to move and adheres to the release film 2, it is automatically rolled up on the winding component to obtain a graphene heat dissipation adhesive with ultra-high heat dissipation performance.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention makes the surface of the tape body uneven by using a plurality of rectangular grooves, so that holes for air circulation can be formed between the heat dissipation film formed by solidification of the graphene heat dissipation coating and the resin adhesive and the rectangular grooves, thereby improving the heat dissipation effect of the tape body and making the tape body have ultra-high heat dissipation;

[0022] 2. The ultra-high viscosity of the resin adhesive can make the graphene heat dissipation coating firmly adhere to the surface of the substrate and quickly condense into a heat dissipation film, so as to avoid the graphene heat dissipation coating being squeezed during subsequent processing and affecting the flatness of the tape;

[0023] 3. The present invention uses an electric heating plate to automatically press out multiple rectangular grooves on the top of the tape body at one time, and then multiple spray guns automatically spray graphene heat dissipation coating and resin adhesive on the surface of the tape body, thereby realizing automatic processing of the tape with high processing efficiency;

[0024] 4. The driving mechanism drives the electric heating plate to rise and fall and the stirring paddle to rotate. While the electric heating plate is rising and falling, the stirring paddle can continuously rotate and stir the graphene heat dissipation coating and the resin adhesive in the storage tank, thereby maintaining the activity of the graphene heat dissipation coating and the resin adhesive and preventing the two from condensing and clogging the spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of the structure of the graphene heat dissipation tape with ultra-high heat dissipation performance;

[0026] Figure 2 This is a cross-sectional view of the structure of the graphene heat dissipation tape with ultra-high heat dissipation performance;

[0027] Figure 3 The overall structure diagram of the preparation device is shown in FIG.

[0028] Figure 4 A diagram of the interior of the protective shell of the preparation device;

[0029] Figure 5 for Figure 4 The main plan view of

[0030] Figure 6 It is the structural diagram of the hot pressing mechanism and the driving mechanism;

[0031] Figure 7It is the structural diagram of the coating mechanism;

[0032] Figure 8 Schematic diagram of the separation of the sealing cover and the liquid storage tank.

[0033] The reference numerals are: 1, tape body; 101, substrate; 102, organic silicone layer; 103, release film 1; 2, rectangular groove; 3, heat dissipation film; 4, release film 2;

[0034] 5. Processing table; 6. Protective shell; 7. Guide rail; 8. Hot pressing mechanism; 9. Coating mechanism; 10. Driving mechanism; 11. Sealing cover; 12. Feeding pipe; 13. Electric heating rod; 14. Pressing assembly; 15. Winding assembly; 16. Door panel; 17. Observation window;

[0035] 801, electric heating plate; 802, rectangular strip;

[0036] 901, liquid storage tank; 902, high pressure pump; 903, spray gun; 904, stirring paddle;

[0037] 1001, screw rod; 1002, nut block; 1003, slide slot; 1004, motor; 1005, belt drive assembly. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Refer to the instruction manual Figure 1-2 The present invention provides a graphene heat dissipation tape with ultra-high heat dissipation, including a tape body 1, wherein the tape body 1 includes a substrate 101, an organic silicone layer 102 and a release film 103 bonded in sequence from top to bottom, a plurality of rectangular grooves 2 are formed by hot pressing on the top of the substrate 101, and the plurality of rectangular grooves 2 are distributed in a linear array on the top of the substrate 101, a heat dissipation layer is formed by spraying on the top of the substrate 101, and the heat dissipation layer is a heat dissipation film 3 formed by mixing and solidifying a graphene heat dissipation coating and a resin adhesive, and a release film 2 4 is fixedly bonded on the top of the heat dissipation film 3.

[0040] A plurality of rectangular grooves 2 are formed on the substrate 101 by hot pressing, so that the surface of the substrate 101 is uneven, and graphene heat dissipation coating and resin adhesive are sprayed on the top surface of the substrate 101. Graphene has very high thermal conductivity and thermal radiation coefficient, so the graphene heat dissipation coating has super high heat dissipation. The graphene heat dissipation coating is sprayed on the top surface of the substrate 101 and the surface of the plurality of rectangular grooves 2. After the graphene heat dissipation coating is solidified, a heat dissipation film 3 is formed, which can effectively conduct the heat of the tape body 1. At the same time, the rectangular grooves 2 are not covered with graphene. The heat dissipation coating and resin adhesive are filled. When the tape is used, the multiple rectangular grooves 2 can meet the air circulation, so that the heat dissipation film 3 formed by the graphene heat dissipation coating and the resin adhesive can better conduct and dissipate the heat of the equipment, so that the tape has ultra-high heat dissipation. In addition, the resin adhesive is mixed in the graphene heat dissipation coating. The ultra-high viscosity of the resin adhesive can make the graphene heat dissipation coating firmly adhere to the surface of the substrate 101 and quickly condense into the heat dissipation film 3, so as to avoid the graphene heat dissipation coating being squeezed during subsequent processing to affect the flatness of the tape.

[0041] Refer to the instruction manual Figure 3-8 The present invention also provides a preparation device for the above-mentioned ultra-high heat dissipation graphene heat dissipation tape, the preparation device comprising a processing table 5, a detachable protective shell 6 is fixedly provided on the top of the processing table 5, a guide rail 7 for guiding the movement of the tape body 1 is provided inside the protective shell 6, and a hot pressing mechanism 8 and a coating mechanism 9 are provided on the top of the processing table 5;

[0042] The hot pressing mechanism 8 includes an electric heating plate 801, which is installed inside the protective shell 6 through a driving mechanism 10. A plurality of rectangular strips 802 are processed at the bottom of the electric heating plate 801, and a rectangular groove 2 is hot-pressed on the top of the tape body 1 using the rectangular strips 802;

[0043] The coating mechanism 9 includes a liquid storage tank 901 fixed inside the protective shell 6, a high-pressure pump 902 is fixedly provided at the bottom of the liquid storage tank 901, and the high-pressure pump 902 is connected to a plurality of spray guns 903 arranged above the tape body 1. A stirring paddle 904 is provided inside the liquid storage tank 901, and a detachable sealing cover 11 is fixedly provided at the top of the liquid storage tank 901. The top of the stirring paddle 904 penetrates the sealing cover 11 and extends between the sealing cover 11 and the protective shell 6.

[0044] In addition, a feeding pipe 12 is fixedly passed through the top of the sealing cover 11, the feeding pipe 12 is connected to the inside of the liquid storage tank 901, and the top of the feeding pipe 12 is threadedly connected to a threaded cover located in the protective shell 6, and a plurality of electric heating rods 13 are fixedly provided at the bottom of the sealing cover 11. The plurality of electric heating rods 13 are distributed in a circular array with the stirring paddle 904 as the center. The electric heating rods 13 can be used to heat the graphene heat dissipation coating and the resin adhesive to prevent the two from solidifying.

[0045] Next, a pressing assembly 14 and a winding assembly 15 are installed in the protective shell 6. The pressing assembly 14 and the winding assembly 15 are both arranged on the side of the liquid storage tank 901 away from the screw rod 1001. The pressing assembly 14 can be used to press the release film 2 4 and the tape body 1 together, and the winding assembly 15 can be used to wind up the tape body 1 covered with the release film 2 4.

[0046] The front end of the protective shell 6 is hinged with two door panels 16 , and the rear end of the protective shell 6 is fixedly provided with a plurality of observation windows 17 , which are convenient for staff to observe the interior of the protective shell 6 .

[0047] During the production process, the tape body 1 first moves to the bottom of the electric heating plate 801, the electric heating plate 801 is powered on for heating, and then the driving mechanism 10 is used to drive the electric heating plate 801 to move downward, and multiple rectangular grooves 2 are pressed out at one time on the top of the tape body 1, and then the electric heating plate 801 moves upward. When the tape body 1 with the rectangular grooves 2 pressed out moves to the bottom of the multiple spray guns 903, the multiple spray guns 903 spray graphene heat dissipation coating and resin adhesive onto the tape body 1, and when the tape body 1 continues to move to the release film 2 4, the pressing assembly 14 sticks the release film 2 4 to the heat dissipation film 3, and then the tape body 1 continues to move and is automatically rolled up on the winding assembly 15.

[0048] Refer to the instruction manual Figure 3-8 The driving mechanism 10 includes a screw rod 1001, which is fixed to a side of the protective shell 6 away from the liquid storage tank 901 through a bracket. A nut block 1002 is sleeved on the screw rod 1001, and the nut block 1002 is threadedly connected to the screw rod 1001. A slide groove 1003 is processed at the rear end of the protective shell 6. The rear end of the nut block 1002 is slidably connected to the slide groove 1003. The slider slides in the slide groove 1003, thereby driving the electric heating plate 801 to rise and fall stably. A motor 1004 for driving the screw rod 1001 to rotate is fixed at the top of the bracket. The screw rod 1001 is connected to the stirring paddle 904 through a belt drive assembly 1005. The motor 1004 is used as a power device, thereby improving the production effect of the graphene heat dissipation tape.

[0049] The motor drives the screw rod 1001 to rotate, and the screw rod 1001 drives the nut block 1002 to slide up and down in the slide groove 1003. At the same time, the nut block 1002 drives the electric heating plate 801 to automatically rise and fall, thereby completing the automatic hot pressing of the tape body 1. When the screw rod 1001 rotates clockwise and counterclockwise, the belt transmission assembly 1005 drives the stirring paddle 904 to rotate clockwise and counterclockwise. The stirring paddle 904 is used to stir the graphene heat dissipation coating and the resin adhesive in the liquid storage tank 901 to maintain their activity and prevent the graphene heat dissipation coating and the resin adhesive from clogging the high-pressure pump 902 and the spray gun 903.

[0050] In actual use, a control box can be installed on the left side of the protective shell 6 to control the motor 1004, the electric heating plate 801, the high-pressure pump 902, the pressing assembly 14, and the winding assembly 15 of the present invention. There is a battery inside the control box to provide electrical energy, and the heating rod 13 is powered by its own battery. In order to facilitate the control of the heating rod 13, the heating rod 13 can be connected to the control box through a wireless communication module to achieve remote control. The above technologies are all existing commonly used technologies and will not be further elaborated here.

[0051] The present invention also provides a method for preparing a graphene heat dissipation tape with ultra-high heat dissipation using the above-mentioned preparation device, and the specific steps are as follows:

[0052] Step 1: Pass one end of the tape body 1 through the guide rail 7 and connect it to the winding assembly 15, and use the winding assembly 15 to pull the tape body 1 to move;

[0053] Step 2: When the tape body 1 moves to the bottom of the electric heating plate 801, the winding assembly 15 stops rotating, and the motor drives the screw rod 1001 to rotate, so that the nut block 1002 on the screw rod 1001 moves downward to drive the electric heating plate 801 to press out a plurality of rectangular grooves 2 on the top of the tape body 1, and then the electric heating plate 801 moves upward, and the winding assembly 15 rotates again to pull the tape body 1 to move;

[0054] Step 3: When the tape body 1 is moved below the spray gun 903, multiple spray guns 903 spray graphene heat dissipation coating and resin adhesive onto the surface of the tape body 1;

[0055] Step 4: After the tape body 1 continues to move and adheres to the release film 2 4 , it is automatically rolled up on the rolling component 15 , thus obtaining a graphene heat dissipation adhesive with ultra-high heat dissipation performance.

[0056] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A graphene heat dissipation tape with ultra-high heat dissipation, comprising a tape body (1), characterized in that: The adhesive tape body (1) comprises a substrate (101), an organic silicone layer (102) and a release film (103) bonded sequentially from top to bottom; The top of the substrate (101) is hot pressed to form a plurality of rectangular grooves (2), the plurality of rectangular grooves (2) are distributed in a linear array on the top of the substrate (101), the top of the substrate (101) is sprayed to form a heat dissipation layer, the heat dissipation layer is a heat dissipation film (3) formed by mixing and solidifying a graphene heat dissipation coating and a resin adhesive; A second release film (4) is fixedly bonded to the top of the heat dissipation film (3).

2. A device for preparing the graphene heat dissipation tape with ultra-high heat dissipation according to claim 1, characterized in that: The preparation device comprises a processing table (5), a detachable protective shell (6) is fixedly provided on the top of the processing table (5), a guide rail (7) for guiding the movement of the adhesive tape body (1) is provided inside the protective shell (6), and a hot pressing mechanism (8) and a coating mechanism (9) are provided on the top of the processing table (5); The hot pressing mechanism (8) comprises an electric heating plate (801), the electric heating plate (801) being installed inside the protective shell (6) via a driving mechanism (10), a plurality of rectangular strips (802) being processed at the bottom end of the electric heating plate (801), and the rectangular strips (802) are hot pressed to form rectangular grooves (2) at the top of the adhesive tape body (1); The coating mechanism (9) comprises a liquid storage tank (901) fixed inside the protective shell (6), a high-pressure pump (902) is fixedly provided at the bottom end of the liquid storage tank (901), the high-pressure pump (902) is connected to a plurality of spray guns (903) arranged above the tape body (1), and a stirring paddle (904) is provided inside the liquid storage tank (901).

3. The preparation device according to claim 2, characterized in that: A detachable sealing cover (11) is fixedly provided on the top of the liquid storage tank (901), and the top of the stirring paddle (904) passes through the sealing cover (11) and extends between the sealing cover (11) and the protective shell (6).

4. The preparation device according to claim 3, characterized in that: A feeding pipe (12) is fixedly passed through the top end of the sealing cover (11), the feeding pipe (12) is communicated with the interior of the liquid storage tank (901), and the top end of the feeding pipe (12) is threadedly connected to a threaded cover located in the protective shell (6), and a plurality of electric heating rods (13) are fixedly provided at the bottom end of the sealing cover (11), and the plurality of electric heating rods (13) are distributed in a circular array with the stirring paddle (904) as the center.

5. The preparation device according to claim 2, characterized in that: The driving mechanism (10) comprises a screw rod (1001), the screw rod (1001) being fixed to a side of the protective shell (6) away from the liquid storage tank (901) via a bracket, a nut block (1002) being sleeved on the screw rod (1001), the nut block (1002) being threadedly connected to the screw rod (1001), a slide groove (1003) being processed at the rear end of the protective shell (6), and the rear end of the nut block (1002) being slidably connected to the slide groove (1003).

6. The preparation device according to claim 5, characterized in that: A motor (1004) for driving the screw rod (1001) to rotate is fixedly provided at the top end of the bracket, and the screw rod (1001) is connected to the stirring paddle (904) via a belt transmission assembly (1005).

7. The preparation device according to claim 5, characterized in that: A pressing assembly (14) and a winding assembly (15) are installed in the protective shell (6). The pressing assembly (14) and the winding assembly (15) are both arranged on a side of the liquid storage tank (901) away from the screw rod (1001). The pressing assembly (14) can be used to press the release film 2 (4) and the tape body (1) together, and the winding assembly (15) can be used to wind up the tape body (1) covered with the release film 2 (4).

8. The preparation device according to claim 2, characterized in that: The front end of the protective shell (6) is hinged with two door panels (16), and the rear end of the protective shell (6) is fixedly provided with a plurality of observation windows (17).

9. A method for preparing a graphene heat dissipation tape with ultra-high heat dissipation using the preparation device according to any one of claims 2 to 8, characterized in that: The specific steps are as follows: Step 1: Pass one end of the tape body (1) through the guide rail (7) and connect it to the reel assembly (15), and use the reel assembly (15) to pull the tape body (1) to move; Step 2: When the tape body (1) moves to the bottom of the electric heating plate (801), the reel assembly (15) stops rotating, and the motor drives the screw rod (1001) to rotate, so that the nut block (1002) on the screw rod (1001) moves downward to drive the electric heating plate (801) to press out a plurality of rectangular grooves (2) on the top of the tape body (1), and then the electric heating plate (801) moves upward, and the reel assembly (15) rotates again to pull the tape body (1) to move; Step 3: When the tape body (1) is moved to the bottom of the spray gun (903), multiple spray guns (903) spray graphene heat dissipation coating and resin adhesive onto the surface of the tape body (1); Step 4: After the tape body (1) continues to move and adheres to the second release film (4), it is automatically rolled up on the rolling component (15), thereby obtaining a graphene heat dissipation tape with ultra-high heat dissipation performance.

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